For those who are able, a pihole is a must when connecting a smart TV (or any other “smart” device for that matter) to the internet.
It’s shockingly disturbing the amount of traffic my Samsung TV produces, even when watching OTA stations. It easily queries Samsung cloud domains more than any other device on my network. Thankfully I am able to sinkhole all those requests without totally breaking tv functionality, but after paying hundreds of dollars for a television, I don’t need to give them any more of my data for financial gain.